alpha Persei cluster Comparison Table

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physical object > natural object > celestial body > collection of stars > star cluster > open cluster > alpha Persei cluster

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alpha Persei cluster comparison table

Subject has definition is a kind of is an instance of

open cluster A comparatively loose grouping (mass range 10²-10³ M)_sun of Population I stars, strongly concentrated in the spiral arms or the disk of the Galaxy (in fact, open clusters give a good indication of where the spiral arms are). Unlike associations, open clusters are dynamically stable. Depending on their age, stars in open clusters "peel off" from the main sequence at different points (the higher the turnoff point, the younger the cluster). (Sometimes called Galactic cluster; NGC 188 is the oldest known open cluster.) star cluster

alpha Persei cluster A young open cluster with a high mean rotational velocity. open cluster

Subject	has definition	is a kind of	is an instance of
open cluster	A comparatively loose grouping (mass range 10²-10³ M)_sun of Population I stars, strongly concentrated in the spiral arms or the disk of the Galaxy (in fact, open clusters give a good indication of where the spiral arms are). Unlike associations, open clusters are dynamically stable. Depending on their age, stars in open clusters "peel off" from the main sequence at different points (the higher the turnoff point, the younger the cluster). (Sometimes called Galactic cluster; NGC 188 is the oldest known open cluster.)	star cluster
alpha Persei cluster	A young open cluster with a high mean rotational velocity.		open cluster

Next open cluster: Coma open cluster Up: open cluster Previous open cluster: Praesepe